Fecal occult blood detector



FIG. 1 is a perspective view of a fecal occult blood detector, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines depict portions of the fecal occult blood detector that form no part of the claimed design. 

CLAIM The ornamental design for a fecal occult blood detector, as shown and described. 